Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

Thermal Improvable Behavior of A Pressed Fitting Mixed Explosive

Authors
Lin Jia, Lin-jun Zhang, Dong-mei Zhang, Yan Gu, Kai-di Xin, Zhi-qun Chen, Jie-yu Luan, Ke-yong Wang
Corresponding Author
Lin Jia
Available Online April 2015.
DOI
10.2991/mebe-15.2015.203How to use a DOI?
Keywords
physical chemistry; hexogen; paraffin; mixed explosive; thermal improvable behavior
Abstract

A mixed explosive contains Al powder, hexogen (RDX), paraffin, etc. It is pressed fitting into 20×20mm pillars. The pillars are heated in 55C for 57days and are measured in volume, mass and density. They are experimented in mechanical properties, sensitivities, stability. The micro-structure of the pillar are tested, and the outer skin of pillar is observed. The results reveal that pillar remains unchanged in mass, becomes bigger in volume and smaller in average density; Pillars show no cracks, but they become bigger in density-difference; pillars become bigger in both compression strength and shear strength, their vacuum stability test gas-bleed volume and friction sensitivity all becomes smaller; the paraffin in heated pillar is more regular, and RDX is better in quality. The above findings confirm that after heated, the paraffin in the pillars becomes attached to each other, and fills up the crevices between solid particles, i.e. its cohesion and cladding improve. And RDX improves in quality, so the pillars show a tendency of improvement in terms of macro property. All this shows that the thermal stress exercises a improvable function on the pillars.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
Series
Advances in Engineering Research
Publication Date
April 2015
ISBN
978-94-62520-57-8
ISSN
2352-5401
DOI
10.2991/mebe-15.2015.203How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Lin Jia
AU  - Lin-jun Zhang
AU  - Dong-mei Zhang
AU  - Yan Gu
AU  - Kai-di Xin
AU  - Zhi-qun Chen
AU  - Jie-yu Luan
AU  - Ke-yong Wang
PY  - 2015/04
DA  - 2015/04
TI  - Thermal Improvable Behavior of A Pressed Fitting Mixed Explosive
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 911
EP  - 914
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.203
DO  - 10.2991/mebe-15.2015.203
ID  - Jia2015/04
ER  -